The QStyleOptionSpinBox class is used to describe the parameters necessary for drawing a spin box. 更多...
头: | #include <QStyleOptionSpinBox> |
qmake: | QT += widgets |
继承: | QStyleOptionComplex |
enum | StyleOptionType { Type } |
enum | StyleOptionVersion { Version } |
QStyleOptionSpinBox (const QStyleOptionSpinBox & other ) | |
QStyleOptionSpinBox () |
QAbstractSpinBox::ButtonSymbols | buttonSymbols |
bool | frame |
QAbstractSpinBox::StepEnabled | stepEnabled |
QStyleOptionSpinBox contains all the information that QStyle 函数需要绘制 QSpinBox and QDateTimeEdit .
For performance reasons, the access to the member variables is direct (i.e., using the
.
or
->
operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style functions.
对于可以如何使用样式选项的演示范例,见 样式 范例。
另请参阅 QStyleOption and QStyleOptionComplex .
This enum is used to hold information about the type of the style option, and is defined for each QStyleOption 子类。
常量 | 值 | 描述 |
---|---|---|
QStyleOptionSpinBox::Type
|
SO_SpinBox
|
提供样式选项的类型 ( SO_SpinBox 对于此类)。 |
类型内部使用通过 QStyleOption ,其子类,和 qstyleoption_cast () to determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.
另请参阅 StyleOptionVersion .
This enum is used to hold information about the version of the style option, and is defined for each QStyleOption 子类。
常量 | 值 | 描述 |
---|---|---|
QStyleOptionSpinBox::Version
|
1
|
1 |
版本的使用通过 QStyleOption 子类以实现扩展在不破坏兼容性的情况下。若使用 qstyleoption_cast (),通常不需要校验它。
另请参阅 StyleOptionType .
构造副本为 other 样式选项。
Constructs a QStyleOptionSpinBox, initializing the members variables to their default values.
This variable holds the type of button symbols to draw for the spin box
默认值为 QAbstractSpinBox::UpDownArrows specufying little arrows in the classic style.
另请参阅 QAbstractSpinBox::ButtonSymbols .
This variable holds whether the spin box has a frame
The default value is false, i.e. the spin box has no frame.
This variable holds which buttons of the spin box that are enabled
默认值为 QAbstractSpinBox::StepNone .